.recent_topics_container {
    padding: 0;
    border-radius: 4px;
    background-color: hsl(0, 0%, 100%);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-height: 100vh;

    #recent_topics_table {
        max-width: 100%;
        padding-top: 12px;
        overflow: hidden !important;
        display: flex;
        flex-direction: column;
        border-style: solid;
        border-color: hsl(0, 0%, 88%);
        border-width: 0 1px;
        border-radius: 0;
        margin-top: 40px;
        /* To make the table span full height
         * when rows don't reach bottom of the
         * window. This makes the border span
         * fully to bottom in that case.
         */
        min-height: 100vw;

        td {
            vertical-align: middle;
            padding: 3px 8px;
        }

        .recent_topics_focusable {
            display: inline-block;

            & > * {
                outline: 0;
            }

            &:focus-within {
                /* Use the same color as the message feed pointer */
                box-shadow: 0 3px 0 hsl(215, 47%, 50%);
            }
        }

        a {
            color: hsl(205, 47%, 42%);
            text-decoration: none;

            &:hover {
                color: hsl(214, 40%, 58%);
            }
        }

        .required-text:empty::after {
            content: attr(data-empty);
            display: block;
            font-style: italic;
            color: hsl(0, 0%, 67%);
        }

        .fa-check-square-o,
        .fa-square-o {
            padding: 0 2px;
        }

        .fa-lock {
            padding-right: 3px;
        }

        .table_fix_head {
            padding: 0 !important;
            /* 100px = space occupied by `recent_topics_filter_buttons`( ~49px)
                     + give user some extra space at the bottom so that last
                       topic row is clearly visible. */
            max-height: calc(100vh - 100px);
        }

        .table_fix_head table {
            /* To keep border properties to the thead th. */
            border-collapse: separate;
            /* For visual reasons, in a message feed, we require a large
             * bottom_whitespace to make it convenient to display new
             * messages as they come in and prevent occluding the last
             * message with an open compose box. Here, the bottom item
             * is rarely interesting context for a message one is
             * composing, but we do need at least 41px to allow the
             * close-compose-box UI element (including border) to not
             * overlap content. Add some more margin so that user
             * can clearly see the end of the topics.
             */
            margin-bottom: 100px;
        }

        #recent_topics_filter_buttons {
            margin: 0 10px;
            display: flex;
            /* Search box has no height without this in safari. */
            flex: 0 0 auto;
            flex-wrap: wrap;
            justify-content: flex-start;
        }

        .search_group {
            display: flex;
            flex-grow: 1;
            margin: 0 0 10px;
        }

        #recent_topics_search {
            flex-grow: 1;
        }

        .clear_search_button {
            /* Overrides app_components.css property. */
            padding-top: 6px !important;
        }

        #recent_topics_search_clear {
            margin-top: -10px !important;
        }

        .btn-recent-filters {
            border-radius: 40px;
            margin: 0 5px 10px 0;

            &:focus {
                background-color: hsl(0, 0%, 80%);
                outline: 0;
            }
        }

        .btn-recent-selected {
            background-color: hsl(0, 11%, 93%);
        }

        .unread_count {
            margin-right: 10px;
            align-self: center;
        }

        .flex_container {
            display: flex;
            align-items: center;
        }

        .flex_container .left_part {
            flex-wrap: wrap;
        }

        .flex_container .right_part {
            margin-left: auto;
            display: inline-flex;
        }

        .recent_topic_actions {
            display: flex;
            flex-flow: row nowrap;
        }

        .recent_topics_participants {
            display: inline-flex; /* Causes LI items to display in row. */
            list-style-type: none;
            margin: auto; /* Centers vertically / horizontally in flex container. */
            height: 24px;
            padding: 4px;
            border-radius: 6px;
            overflow: hidden;

            /*
                By using the row-reverse layout, the visual ordering will be opposite of
                the DOM ordering. This will allows us to stack the items in the opposite
                direction of the natural stacking order without having to mess with the
                zIndex value. The MAJOR DOWNSIDE is that the HTML itself now reads
                backwards, which super janky.
            */
            flex-direction: row-reverse;
        }

        .recent_topics_participant_item {
            height: 24px;
            margin: 0;
            padding: 0 1.5px;
            position: relative;
            min-width: 24px;

            .fa-user {
                opacity: 0.7;
            }
        }

        .recent_topics_participant_avatar,
        .recent_topics_participant_overflow {
            border: 0;
            border-radius: 6px;
            color: hsl(0, 0%, 100%);
            display: block;
            height: 24px;
            text-align: center;
            background-color: hsl(0, 0%, 88%);
        }

        .recent_topics_participant_overflow {
            color: hsl(0, 0%, 0%);
            line-height: 24px;
        }

        tr {
            background-color: hsl(100, 11%, 96%);

            &:hover {
                background-color: hsl(210, 100%, 97%);
            }
        }

        .unread_topic {
            background-color: hsl(0, 0%, 100%);
        }

        .last_msg_time {
            float: left;
            margin-right: 5px;
        }

        thead th {
            background-color: hsl(0, 0%, 100%);
            color: inherit;
            border-top: 1px solid hsla(0, 0%, 0%, 0.2) !important;
            border-bottom: 1px solid hsla(0, 0%, 0%, 0.2) !important;
            position: sticky;
            top: 0;
            z-index: 1;

            &.active::after,
            &[data-sort]:hover::after {
                content: " \f0d8";
                white-space: pre;
                display: inline-block;
                position: absolute;
                padding-top: 3px;
                font: normal normal normal 12px/1 FontAwesome;
                font-size: inherit;
            }

            &.active {
                opacity: 1;
                transition: opacity 100ms ease-out;

                &.descend::after {
                    content: " \f0d7";
                }
            }

            &[data-sort]:hover {
                cursor: pointer;

                &:not(.active)::after {
                    opacity: 0.3;
                }
            }
        }

        /* These fixed column widths prevent column widths from being adjusted
           as new messages arrive from the server. */
        .recent_topic_stream {
            width: 25%;
            padding: 8px;
        }

        .recent_topic_name {
            width: 40%;
        }

        .recent_topic_users {
            width: 20%;
        }

        .recent_topic_timestamp {
            width: 15%;
        }

        thead .last_msg_time_header {
            /* The responsive table of bootstrap
               somehow ignores the width of ::after
               element. This ensures it is always visible.
               20px = space occupied by ::after (icon) +
               some extra padding.
            */
            padding-right: 20px;
        }

        @media (width < $md_min) {
            /* Hide participants and last message time
               on smaller screens. This ensures user always
               has a nice UI experience. */
            .recent_topic_users,
            .recent_topic_timestamp,
            thead .participants_header,
            thead .last_msg_time_header {
                display: none;
            }

            .recent_topic_actions {
                margin-right: 5px;
                font-size: 15px;
            }
        }
    }
}

#recent_topics_view {
    display: none;
    position: relative;
}
